128-channel active electrodes system biosemi activetwo system  (BioSemi)

Journal: Frontiers in Digital Health

Article Title: Neuroscience from the comfort of your home: Repeated, self-administered wireless dry EEG measures brain function with high fidelity

doi: 10.3389/fdgth.2022.944753

Figure Lengend Snippet: Cumulus dry EEG recording headset. (A) Positioning of the headset on the head. (B) Interior of the dry EEG cap. (C) Dry EEG electrode. (D) Screenshot of the built-in calibration step in the mobile app. Figure adapted from McWilliams et al. .

Article Snippet: A Biosemi ActiveTwo recording system with 128 active electrodes (Biosemi B.V., Amsterdam, the Netherlands) was used to collect the data.

Techniques:

Journal: Frontiers in Digital Health

Article Title: Neuroscience from the comfort of your home: Repeated, self-administered wireless dry EEG measures brain function with high fidelity

doi: 10.3389/fdgth.2022.944753

Figure Lengend Snippet: ERPs analyses extracted from the Younger Adult Study ( N = 30). Top row: Grand study average computed across all participants. Middle row: Standardized Measurement Errors per number of trials. The gray continuous lines correspond to the number of participants remaining in the SME calculation after trial rejection. Bottom Row: Mean numbers of trials available after preprocessing. The black dotted lines correspond to the mean numbers of trials extracted from the wet EEG study. From left to right: Target Trials extracted from the Oddball task at electrode Pz, Correct Trials extracted from the Flanker task at electrode FCz, Error Trials extracted from the Flanker task at electrode FCz. The shaded areas correspond to the 95% confidence intervals.

Article Snippet: A Biosemi ActiveTwo recording system with 128 active electrodes (Biosemi B.V., Amsterdam, the Netherlands) was used to collect the data.

Techniques:

Journal: Frontiers in Digital Health

Article Title: Neuroscience from the comfort of your home: Repeated, self-administered wireless dry EEG measures brain function with high fidelity

doi: 10.3389/fdgth.2022.944753

Figure Lengend Snippet: Standardized Measurement Errors per number of trials of data collected in the laboratory under researcher supervision extracted from the Younger Adult Study ( N = 30). The blue line corresponds to data collected in the laboratory. The gray line corresponds to data collected in the home. The black dotted lines correspond to the mean numbers of trials extracted from the wet EEG study. From left to right: Target Trials extracted from the Oddball task at electrode Pz, Correct Trials extracted from the Flanker task at electrode FCz, Error Trials extracted from the Flanker task at electrode FCz. The shaded areas correspond to the 95% confidence intervals.

Article Snippet: A Biosemi ActiveTwo recording system with 128 active electrodes (Biosemi B.V., Amsterdam, the Netherlands) was used to collect the data.

Techniques:

Journal: Frontiers in Digital Health

Article Title: Neuroscience from the comfort of your home: Repeated, self-administered wireless dry EEG measures brain function with high fidelity

doi: 10.3389/fdgth.2022.944753

Figure Lengend Snippet: ERPs analyses extracted from the Older Adult Study ( N = 50). Top row: Grand study average computed across all participants. Middle row: Standardized Measurement Errors per number of trials. The gray continuous lines correspond to the number of participants remaining in the SME calculation after trial rejection. Bottom Row: Mean numbers of trials available after preprocessing. The black dotted lines correspond to the mean numbers of trials extracted from the wet EEG study. From left to right: Target Trials extracted from the Oddball task at electrode Pz, Correct Trials extracted from the Flanker task at electrode FCz, Error Trials extracted from the Flanker task at electrode FCz. The shaded areas correspond to the 95% confidence intervals.

Article Snippet: A Biosemi ActiveTwo recording system with 128 active electrodes (Biosemi B.V., Amsterdam, the Netherlands) was used to collect the data.

Techniques:

Journal: Frontiers in Digital Health

Article Title: Neuroscience from the comfort of your home: Repeated, self-administered wireless dry EEG measures brain function with high fidelity

doi: 10.3389/fdgth.2022.944753

Figure Lengend Snippet: Standardized Measurement Errors per number of trials of data collected in the laboratory under researcher supervision extracted from the Older Adult Study ( N = 50). The purple line corresponds to data collected in the laboratory. The gray line corresponds to data collected in the home. The black dotted lines correspond to the mean numbers of trials extracted from the wet EEG study. From left to right: Target Trials extracted from the Oddball task at electrode Pz, Correct Trials extracted from the Flanker task at electrode FCz, Error Trials extracted from the Flanker task at electrode FCz. The shaded areas correspond to the 95% confidence intervals.

Article Snippet: A Biosemi ActiveTwo recording system with 128 active electrodes (Biosemi B.V., Amsterdam, the Netherlands) was used to collect the data.

Techniques:

Journal: Journal of Vision

Article Title: Dissociating electrophysiological correlates of contextual and perceptual learning in a visual search task

doi: 10.1167/jov.20.6.7

Figure Lengend Snippet: Schematic representation of the electrode (128-electrode BioSemi system) clusters used to explore activities recorded in the middle parieto-occipital area (electrodes A19, A20, A21, A22, and A23) and parieto-occipital area (electrodes A8, A9 and A10 for the left hemisphere and electrodes B5, B6, and B7 for the right hemisphere).

Article Snippet: The EEG was recorded using 128 active electrodes (ActiveTwo; BioSemi BV, Amsterdam, Netherlands) ( ) relative to two central electrodes (Common Mode Sense and Driven Right Leg) with a sampling rate of 1024 Hz.

Techniques:

Journal: Journal of Vision

Article Title: Dissociating electrophysiological correlates of contextual and perceptual learning in a visual search task

doi: 10.1167/jov.20.6.7

Figure Lengend Snippet: (A) ERPs recorded during EEG session 1 (day 2) from posterior electrodes with a trained (blue) or untrained (red) target orientation presented in the UVF. (B) ERPs recorded during EEG session 1 (day 2) from posterior electrodes with a trained (blue) or untrained (red) target orientation presented in the LVF. (C) C1 component topographical map (average activity from 20 to 80 ms after stimulus onset) during EEG session 1 for trained target orientation (left) or untrained target orientation (middle) and their difference (right). The top row represents the UVF, and the bottom one represents the LVF. (D) ERPs recorded during EEG session 2 (day 11) from posterior electrodes, with a trained (blue) or untrained (red) target orientation presented in the UVF. (E) ERPs recorded during EEG session 2 (day 11) from posterior electrodes, with a trained target orientation (blue) or untrained target orientation (red) presented in the LVF. (C) C1 component topographical map (average activity from 20 to 80 ms after stimulus onset) for EEG session 1 with trained target orientation (left) or untrained target orientation (middle) and their difference (right). The white dots indicate electrode clusters used to obtain the trained and untrained average amplitudes for the C1 component. The top row represents the UVF and the bottom one the LVF.

Article Snippet: The EEG was recorded using 128 active electrodes (ActiveTwo; BioSemi BV, Amsterdam, Netherlands) ( ) relative to two central electrodes (Common Mode Sense and Driven Right Leg) with a sampling rate of 1024 Hz.

Techniques: Activity Assay

Journal: Journal of Vision

Article Title: Dissociating electrophysiological correlates of contextual and perceptual learning in a visual search task

doi: 10.1167/jov.20.6.7

Figure Lengend Snippet: (A) ERPs recorded during EEG session 2 (day 11) from posterior electrodes with a trained (blue) or untrained (red) target orientation presented in the UVF. (B) ERPs recorded during EEG session 2 (day 11) from posterior electrodes with a trained (blue) or untrained (red) target orientation presented in the LVF. (C) C1 component topographical map (average activity from 30 to 100 ms after stimulus onset) for C1 protocol with trained target orientation (left) or untrained target orientation (middle) and their difference (right). The white dots indicate the corresponding electrodes included in the clusters for C1 component. (D) P1 component topographical map (average activity from 100 to 160 ms after stimulus onset) for C1 protocol with trained target orientation (left) or untrained target orientation (middle) and their difference (right). The white dots indicate electrode clusters used to obtain the P1 component. The top row represents the UVF and the bottom one the LVF. (E) ERPs recorded during EEG session 2 (day 11) from posterior electrodes (bold blue, trained target; bold red, untrained target) and frontal electrodes (same color code but with dashed lines), with target orientation presented in the LVF.

Article Snippet: The EEG was recorded using 128 active electrodes (ActiveTwo; BioSemi BV, Amsterdam, Netherlands) ( ) relative to two central electrodes (Common Mode Sense and Driven Right Leg) with a sampling rate of 1024 Hz.

Techniques: Activity Assay

Journal: Journal of Vision

Article Title: Dissociating electrophysiological correlates of contextual and perceptual learning in a visual search task

doi: 10.1167/jov.20.6.7

Figure Lengend Snippet: (A) ERPs recorded during EEG session 2 (day 11) from posterior electrodes with a repeated context and target presented contralaterally (blue) and ipsilaterally (red). (B) ERPs recorded during EEG session 2 (day 11) from posterior electrodes with a trained target and target presented contralaterally (blue) and ipsilaterally (red). (C) N2pc component topographical map (average activity from 250 to 350 ms after stimulus onset) for session 1 with target presented contralaterally (left) or ipsilaterally (middle) and their difference (right). The white dots indicate electrode clusters used to obtain the average amplitudes for the N2pc component elicited in the different conditions. The top row represents the repeated contexts and the bottom one trained targets.

Article Snippet: The EEG was recorded using 128 active electrodes (ActiveTwo; BioSemi BV, Amsterdam, Netherlands) ( ) relative to two central electrodes (Common Mode Sense and Driven Right Leg) with a sampling rate of 1024 Hz.

Techniques: Activity Assay